Aina opens $399 preorders for smart ring that lets users approve AI agent actions

Aina has opened preorders for a smart ring that displays requests from AI agents and lets wearers approve or reject an action. Promotional pricing starts at $399. The company says it is targeting shipments for early 2027, but that timetable is not a guaranteed delivery date.

The ring puts a small approval interface for agent requests on the wearer’s finger, reducing the need to pull out a phone. It remains tied to other devices: Aina says the ring works with iPhone and Mac, requires iOS 18 or later and macOS 15 or later, and does not support Android or Windows.

Aina describes the device as a titanium ring with a 0.9-inch OLED display at 180 pixels per inch, covered by curved Corning Gorilla Glass 3. Its custom planar controller, called Shifter, supports left and right flicks to move between actions. Up and down flicks can approve, reject or scroll, while a center press unlocks the ring and holding the center control starts voice input. The specifications have not been independently measured.

In Aina’s example workflow, an agent request appears on the display and the wearer flicks up to approve it or down to reject it. The product is meant to serve as a human-approval layer for proactive agents—software that can prepare an action and ask for permission before carrying it out—not as a standalone phone replacement.

The company says its iPhone app handles setup and connected services, while a Mac app supports meeting controls and other computer actions. Aina claims the ring can receive four gestures in Mac apps, expose controls such as mute or leave during meetings, dictate into Mac apps, and answer or decline incoming phone calls. It also names Instinct, Muse and Grokbot as supported agents and advertises actions involving Uber, music, calendars, messages and smart-home devices. The breadth, readiness and reliability of those integrations have not been independently established.

Aina also claims up to 18 hours of battery life and a full recharge on the included dock in under two hours. Neither figure has been established through independent standardized testing. The company lists a microphone and speaker for voice interactions and calls, along with an IP65 rating for resistance to dust and water jets; call performance and durability have not been independently validated.

The company’s FAQ lists a $399 super-early-bird price, followed by $419 and $449 tiers, and a $499 list price. Those tiers and their availability are controlled by Aina and may change. Customers pay the full preorder price at checkout, according to the company. Aina says it will send buyers a sizing kit before manufacturing their rings and will allow a full-refund cancellation only until that kit ships. Its online store describes delivery as an early-2027 target.